Tillmann Werner


Federal Trojan’s Got A “Big Brother”

By Tillmann WernerAbout two weeks ago, the German Chaos Computer Club (CCC) has published an analysis report of a backdoor trojan that they claim had been used by German police during investigations in order to capture VoIP and IM communication on a suspect’s PC. Our friends over at F-Secure published a blog post last week where they wrote about another file that, according to them, seemed to be the dropper component of the trojan. They were kind enough to share the MD5 hash of the file, so we could pull it from our collection. Stefan and I took a closer look.

Botnet Takedown: Researcher Describes How Kelihos Fell

Dennis Fisher talks with Kaspersky Lab Researcher Tillmann Werner about the takedown of the Kelihos botnet, the network’s unique multi-tiered architecture, its custom protocol and the ethics and legality of pushing updates to disable bots on users’ machines.

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